I've been saying this for years; decades, really, in my classes. But Levi Lusko just says it so very well:
"This is the war:
every moment of every day, we must make the all important choice of whether we will rely on the naked eye. Will we trust what we see is there, OR WHAT GOD SAYS IS THERE?
It's a decision we are continually confronted with. The Apostle Paul put it this way: "While we look, not at the things which are seen, but the things which are not seen; for the things which are seen are temporal; the things which are not seen ARE ETERNAL" (II Corinthians 4:18).
-- check out II Kings 6:15-17 in connection with this thought --
"You must not rely on the naked eye. What you think you see is not all that is there!
There are unseen things. Spiritual things. Eternal things.
You must learn to see life THROUGH THE EYES OF A LION.
Doing so is to utilize the telescope of faith, which will not only allow you to see the invisible -- it will give you the strength to do the impossible."
I'll tell you -- you really ought to read this book!
"Through the Eyes of a Lion," by Levi Lusko (pages xxiv and xxx).